Print Email Facebook Twitter Parametric analysis of mechanical fastener disbond arrest features in bonded joints Title Parametric analysis of mechanical fastener disbond arrest features in bonded joints Author van 't Hof, Nathan (TU Delft Aerospace Engineering) Contributor Rans, C.D. (mentor) Degree granting institution Delft University of Technology Programme Aerospace Engineering | Structures and Materials Date 2021-04-07 Abstract The purpose of this research study is to analyse the effect of the design of mechanical fastener on their effectiveness as Disbond Arrest Features (DAFs). This was done by means of a sensitivity study using a 3D model using the Virtual Crack Closure Technique (VCCT) to model the disbond growth of a single lap shear specimen comparing the Strain Energy Release Rate (SERR). Different fastener material stiffnesses, shaft radii, head radii and head geometries were compared. The sensitivity study showed the Mode I SERR was completely independent of the fastener design and the Mode II was suppressed more strongly for fasteners with a lower flexural flexibility. Fasteners with a countersunk head showed less reduction of the Mode II SERR, this was caused by the head rotating as a result of the fastener adherend interaction, reducing the effectiveness of the load transfer. Subject Disbond Arrest FeaturesSingle lap shearfatiguevirtual crack closure techniquevcctfastenerbolthybrid joint To reference this document use: http://resolver.tudelft.nl/uuid:b276a896-2972-47d2-8bd7-3b2ce257f497 Bibliographical note Results and models can be found at https://doi.org/10.17605/OSF.IO/ARXDQ Part of collection Student theses Document type master thesis Rights © 2021 Nathan van 't Hof Files PDF MSc_ASM_Nathan_van_t_Hof.pdf 6.54 MB Close viewer /islandora/object/uuid:b276a896-2972-47d2-8bd7-3b2ce257f497/datastream/OBJ/view